code: def setup(self):
      N = 20_000
      dti = date_range("1900-01-01", periods=N)
  
      self.list_of_timestamps = dti.tolist()
      self.list_of_dates = dti.date.tolist()
      self.list_of_datetimes = dti.to_pydatetime().tolist()
      self.list_of_str = dti.strftime("%Y-%m-%d").tolist()
  
imports: import numpy
  from pandas import DatetimeIndex, Index, MultiIndex, Series, Timestamp, date_range
  from .pandas_vb_common import setup
label_desc: Use image node_id 1 for calling the DatetimeIndexConstructor obj's underlying member method code with example usage: obj.setup() without return types